$\frac{d}{dx}\left(\left(3xy+5xy^2-7x^4\right)^{\frac{3}{4}}=0\right)$

$5+4-7x+3-8-6y+-8+10+20$

$\int\left(\frac{x}{3x^2+x+1}\right)dx$

$\left(m-40\right)\left(m+40\right)$

$32x^2-50$

$14-\left(-48\right)+\left(-122\right)+8$

$\:\left[\left(\frac{2}{5}x+5y^2\right)-\frac{5}{3}z\right]^2$